Gadgetry and the ventricular system.
D001932:Brain Neoplasms / Q000188:drug therapy / Q000601:surgery; D002493:Central Nervous System Diseases / Q000601:surgery*; D002552:Cerebral Ventricles / Q000601:surgery*; D002555:Cerebrospinal Fluid; D004322:Drainage / Q000295:instrumentation*; D006801:Humans; D006849:Hydrocephalus / Q000601:surgery; D008722:Methods